Balint Ureczky
added a comment - 31/Jan/13 3:23 AM I also tested on the 2.0.0 enterprise server (build-1976), which was the same.
The server returns with the error "Key was modified" as you can see in the attached output.txt

Michael Nitschinger
added a comment - 31/Jan/13 9:44 AM To clarify, this error comes up when using the persistence constraints (persist, replicate) in combination. Just out of curiosity, can you try without them and see if it works as expected? Thanks

Yes, with the default ReplicateTo.ZERO, PersistTo.ZERO settings, its 1000 times faster and there arent any failure in 100.000 tries.
With ReplicateTo.ZERO, PersistTo.ONE settings, i got ~20 failure in 100 tries.